The perfect open prediction seems to be the new ACAAN. Everyone has a version. This one works, but
it has limitations. It is not angle proof, and can only really be performed close up. It requires
excellent audience management or you risk the participant coming in contact with and noticing part
of the gimmick. The reveal feel a bit awkward and contrived. You can work with this, but there are
similar effects on the market that are more versatile and are just as commercial.